Vertical Pump Standards in Secure PDF

ANSI/HI Pump Standards are available in both hardcopy and secure PDF formats. Secure PDFs are immediately downloadable and incur no shipping or handling charges. Standards in this format are a single user license and require a one-time authorization using an Adobe-approved plug-in from FileOpen Systems.

Scope: ANSI/HI 2.1-2.2 offers a basic educational overview on rotodynamic vertical pumps providing nomenclature and definitions that apply to different parts of pumps and classifications by configuration and impeller design.

Scope: Today’s higher speed, higher energy density pumps might not achieve acceptable service life without an adequate NPSH Margin that ensures pumps operate without excessive vibration and cavitation. ANSI/HI 9.6.1 serves as a guideline for NPSH margin for rotodynamic pumps with power levels as high as 5300 hp and impeller tip speeds less than 130 feet per second.

Scope: ANSI/HI 9.6.3 discusses the effects of operating a rotodynamic pump at flow rates greater than or less than the rate of flow at the pump’s best efficiency point (BEP). As these effects influence the power consumption and life of pump components, considering the operating rate of flow is essential to reliable, efficient pump operation.

Scope: ANSI/HI 9.6.6 details pump piping requirements for rotodynamic pumps and effects of inlet/outlet piping on pump performance. Standards are applicable to all piping downstream and upstream from the pump but not when entering tank, vessel or intake structure.

This guideline describes and recommends the means to appropriately evaluate pumping machinery construction
attributes and relevant site characteristics in order to determine the effects of dynamic performance on equipment
life and reliability. It describes and recommends various levels of detailed evaluation and validation that are commensurate
with the degree of equipment uncertainty and application risk.

Scope: Ideally, the flow of liquid into any pump should be uniform, steady, and free from swirl and entrained air. Lack of uniformity through inlet connection can result in pumps not operating to optimum design condition and at a lower hydraulic efficiency.

The purpose of HI Electronic Data Exchange is to define a common industry standard for the electronic exchange of technical data
commonly used to describe pumping equipment. All software applications or systems that adhere to this standard
are able to exchange technical data reliably and efficiently with all other systems that comply with this standard.